Rotary distributor for internal combustion engines



A. FEYENS June Z8, 1932.

ROTARY DISTRIBUTOR FOR INTERNAL COMBUSTION ENGINES 2 Sheets-Sheet l Filed Nov. 9, 1928 A. FEYENS June 28, 1932.

ROTAVRY DISTRIBUTOR FOR INTERNAL COMBUSTION ENGINES Filed Nov. 9, 1928 y 2 Sheets-Sheet. 2

w v4 y Patented June 28, 1932 PATENT OFFICE ALFRED FEYENS, OF BRUSSELS, BELGUM ROTARY DISTRIBUTOR FOR NTERNAL COMBUSTION ENGINES Application led November 9, 1928, Serial No. 318,184, and in Belgium November 14, 1927.

My invention relates to a rotary distributor for internal combustion engines in which a gas-tight communication between the rotor at the single admission and exhaust orifice of each engine cylinder is ensured by a movable element or packing member resiliently pressed against the body of 'the distributor either by the pressure in the said cylinders or by the action of springs. The rotor of the distributor comprises moreover a central eX- haust conduit and a concentric annular admission conduit, owing to which it is possible to obtain an even expansion of the rotor and at the same time effect the heating of the admission gases and an energetic mixing of the latter, means also being provided for ensuring suitable lubrication of the contact surfaces and cooling of the bearing of the driving shaft of the rotor.

Merely by way of example, a construction according to the invention applied to a four cylinder engine, is described in the following with reference to the accompanying` diagrammatic drawings in which:

Figure l is a sectional elevation of a cylinder head provided with a rotary distribu` tor according to the present invention.

Figure 2 is a cross-section on line 22 of Figure l.

Figure 3 is a cross-section of a modified construction.

Figure 4L is a plan of Figure 8, and

Figure 5 is a cross-section of a modified construction somewhat similar to that shown in Figure 8.

As shown in Figures l and 2, the cylinder head a forming the stator, is provided with a cooling water jacket and has a bore in which is rotatably mounted the body Z) or rotor of the distributor. This bore is in communica.- tion with each of the cylinders of the engine through cylindrical passages in each of which can move, with avery limited play, a packing member provided with packing rings, the portion of which coming in contact with the body b, is correspondingly shaped. The packing member is provided with a central orifice. The rotor Z) has a central conduit f for the exhaust which opens at one end into the eX haust pipe g and is put into communication at the correct times with each of the cylinders through suitable ports.

The annular conduit e surrounding the central conduit f is for the admission of fresh gases entering from the carburetor and passing` through the orifice (Z into an end chamber Z1 of the stator ci, the said chamber being closed by a cover z' forming a bearing for the shaft 221 at the opposite end of the rotor.

The movement of each element c constituting the packing member between the engine cylinders and the rotor` may be regulated from outside to prevent excessive friction between the same and the rotor, for instance by means of oppositely arranged rods n slidably mounted in cylindrical partially threaded openings o provided on opposite sides of the cylinder head, said rods comprising cylindrical portions t the beveled ends s of which engage corresponding inclined faces of notches s cut in the packing member c. The opposite end of the rod n comprises a reduced portion t having a threaded end mounted with slight frictional engagement in a hollow bolt u where it is secured by means of a nu? fu provided on the threaded end of the roc rlhe movement of the packing member c may thus readily be adjusted from the outside by screwing or unscrewing the hollow bolt in the threaded portion of the opening o. After being adjusted, the hollow bolt is secured by the set nut fw.

ln the modification illustrated in Figure 3, instead of the packing member c, the invention provides also for use around the orifice of the cover of the engine cylinder, of a cylindrical ring p, the face of which engages with the rotor. Determined by the intersection of the said ring with this rotor, the said ring is guided with a slight amount of friction in a corresponding annular groove p2, and subjected to the action of springs g provided in the bottom of the groove (Figure ln the modification Figure 5, the springs may be dispensed with and the pressure in the engine cylinder may be allowed to act on the rings by making the bottom of the groove p2 communicate with the said chamber through conduits 7.

What I claim is A rotary distributor, more particularly for internal combustion engines, in which gastight communication between the rotor and the cylinder head constituting a stator is ensured at the orice of each cylinder, by means of a piston-like packing member having an axial conduit for admission and exhaust, which packing member is provided with rings and pressed against the rotary distributor by the pressure in the cylinder, the said packing member being capable of a slight movement in the cylinder -head and means operable from the outside Wherewith to adjust the amplitude of movement of said packing member.

In vwitness whereof I affix my signature.

ALFRED FEYENS. 

